We just did Battle of the Sexes tournament that went over really well.
Of course the ability to do this will depend on the demographics of your club.
We did a match play event for the first one where the captains each submitted their playing order and that created t he matchups. We gave people one week to play.
We had the best participation we have ever had, even more than the club championship,it spurred a lot of activity in the forums and it gave people the opportunity to play with other members that they don't normally play with. We are now setting up an alternate shot version.